Shedding light on dark DNA Most textbook definitions of evolution state that it occurs in two stages: mutation followed by natural selection. DNA mutation is a common and continuous process, and occurs completely at random.
The average adult only eats 15 grams of fiber per day. Women need 25 grams of fiber per day, and men need 38 grams per day, according to the Institute of Medicine.
The amount of fiber you need on a daily basis depends on your age and gender. The standard recommendation for fiber consumption suggests that you should consume a minimum of 25 grams of fiber per day.f you consume fiber in the 50 grams per day range, then some health issues may arise. It is possible to experience increased flatulence and diarrhea. However, these symptoms do not characterize all high fiber diets.